package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

/**
 * 删除用户操作，根据输入的用户名删除该用户
 * 要求:使用预编译SQL
 */
public class Test2 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"删除用户","删除");
        try (
                Connection connection = DBUtil.getConnection();
                ){
            String sql = "DELETE FROM userinfo WHERE username=?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());
            int num = ps.executeUpdate();
            if(num>0){
                System.out.println("删除成功");
            }else{
                System.out.println("删除失败");
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

}














